Finding the Third Proportional to 5,265 and 8,151.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,265 : 8,151.89 = 8,151.89 : x
2. Step 2: Convert to fraction form
   5,265/8,151.89 = 8,151.89/x
3. Step 3: Cross multiply
   5,265x = 8,151.89 × 8,151.89
4. Step 4: Simplify right side
   5,265x = 66,453,320.76
5. Step 5: Solve for x
   x = 66,453,320.76/5,265
6. Step 6: Final answer
   x = 12,621.71